Catalog biến tần Inovance MD500 - HPC

User Guide
MD500 Series AC Drive
(500‒630 kW)
A04
Data code 19010374
User Guide

Preface
- 1 -
Preface
Thank you for purchasing the MD500 Series AC Drive developed by Inovance.
As a general-purpose and high-performance current vector AC drive, it is mainly used for
controlling and adjusting the speed and torque of three-phase AC asynchronous motors.
Using high-performance vector control technology, the MD500 series AC drive features
high torque output at a low speed, excellent dynamic characteristics, and superior
overload capability. It provides user-programmable features and monitoring software,
and communication bus functions and supports multiple encoder types, delivering
rich and powerful combined functions and stable performance. It can be used to drive
automatic manufacturing equipment in the fields of textile, papermaking, drawing,
machine tools, packaging, food, fans, and water pumps.
Product appearance
■■ First use
Read this user guide carefully if you use the product for the first time. For any doubt on
its function or performance, contact our technicians for help.
■■ Standards compliance
The following table lists the certificates and standards that the product may comply
with. For details about the acquired certificates, see the certification marks on the
product nameplate.
Name Directive Name Standard
CE certification
EMC Directive 2014/30/EU EN 61800-3
LVD Directive 2014/35/EU EN 61800-5-1
RoHS Directive 2011/65/EU EN 50581
TUV certification - EN 61800-5-1
UL certification
UL61800-5-1
C22.2 No.14-13

Preface
- 2 -
Appllicant Suzhou Inovance Technology Co., Ltd.
AC Drive
Model MD500 series
Made In China
Manufacturer
Suzhou Inovance Technology Co.,Ltd.
Ａ급기기（업무용 방송통신기자재）
이 기기는 업무용(Ａ급) 전자파적합기기로서 판매자
또는 사용자는 이 점을 주의하시기 바라며,가정외의
지역에서 사용하는 것을 목적으로 합니다.
■■ Adjusting Drive Parameters
The drive when it leaves the factory with default settings should enable the user toget
started quickly to check on the basic mechanical running conditions. At a later time,fine
tuning to optimize the operation/performance can be undertaken.
Such parameter tuning should be done by qualified personnel who have prior
trainingon Servo Drives. Some parameter settings can have adverse reactions if
manipulated incorrectly and care should be taken especially during the commissioning
startup stages to prevent personnel from engaging the machine.
This manual provides a complete list of the parameters with functional description and
care should always be taken whenever parameters are adjusted during a live running
startup. Inovance Technology and Authorized Distributors can provide product training
and if in doubt seek advice.

Revision History
- 3 -
Revision History
Date Version Revision Description
November 2015 V0.0
First release.
Related firmware version: F7-10 = U76.56 and F7-11 = U77.56
April 2016 A01 Related firmware version: F7-10 = U76.56 and F7-11 = U77.56
November 2016 A02 Modified "Approvals", the designation rule and nameplate.
November 2017 A03
◆◆ Added 0.4 to 15 kW models.
◆◆ Deleted the MDKE7 operating panel and added the MDKE9
operating panel.
May 2019 A04
◆◆ Changed the document structure.
◆◆ Added information of three-phase 200 to 240 V models in
the following sections:
1.1 Nameplate and Ordering Code
1.3 Technical Specifications
1.4 Product Dimensions
2.4 Selection of Cables, Breakers and Contactors
2.5 Selection of AC Output Reactors
2.6 Selection of Braking Components
3.1.2 Backplate Mounting and Through Hole Mounting
(Note: Three-phase 200 to 240 V models indicates MD500-
2T0.4GB to MD500-2T55GB.)
◆◆ Added specifications of cables that comply with the
UL certification in "Selection of Cables, Breakers and
Contactors".
◆◆ Added the selection table of braking components in "2.6
Selection of Braking Components".
◆◆ Updated Inovance's logo.
◆◆ Modified the setting range of F3-00 and F3-01 and the
default value of F7-04 in "Appendix A Parameter Table".
■■ Acquisition
This user guide is shipped with the product. For any additional order, contact your sales
representative.
This user guide briefly introduces product information, installation and wiring,
troubleshooting, and routine maintenance. For more details, see 19010355 MD500
Series AC Drive Advanced User Guide.
To obtain the user guide, access Inovance's website (http://www.inovance.com), click
Download, search for the user guide by its name, and then download the PDF file.

Safety Instructions
- 4 -
Safety Instructions
Safety Precautions
1) Before installing, using, and maintaining this equipment, read the safety
information and precautions thoroughly, and comply with them during operations.
2) To ensure the safety of humans and equipment, follow the signs on the equipment
and all the safety instructions in this user guide.
3) "CAUTION", "WARNING", and "DANGER" items in the user guide do not indicate
all safety precautions that need to be followed; instead, they just supplement the
safety precautions.
4) Use this equipment according to the designated environment requirements.
Damage caused by improper usage is not covered by warranty.
5) Inovance shall take no responsibility for any personal injuries or property damage
caused by improper usage.
Safety Levels and Definitions
DANGER
indicates that failure to comply with the notice will result in severe personal
injuries or even death.
WARNING
indicates that failure to comply with the notice may result in severe personal
injuries or even death.
CAUTION
indicates that failure to comply with the notice may result in minor personal
injuries or damage to the equipment.
Safety Instructions
Unpacking
CAUTION
◆◆ Check whether the packing is intact and whether there is damage, water seepage, damp, and
deformation.
◆◆ Unpack the package by following the package sequence. Do not hit the package with force.
◆◆ Check whether there are damage, rust, or injuries on the surface of the equipment or
equipment accessories.
◆◆ Check whether the number of packing materials is consistent with the packing list.

Safety Instructions
- 5 -
WARNING
◆◆ Do not install the equipment if you find damage, rust, or indications of use on the equipment
or accessories.
◆◆ Do not install the equipment if you find water seepage, component missing or damage upon
unpacking.
◆◆ Do not install the equipment if you find the packing list does not conform to the equipment
you received.
Storage and Transportation
CAUTION
◆◆ Store and transport this equipment based on the storage and transportation requirements for
humidity and temperature.
◆◆ Avoid transporting the equipment in environments such as water splashing, rain, direct
sunlight, strong electric field, strong magnetic field, and strong vibration.
◆◆ Avoid storing this equipment for more than three months. Long-term storage requires stricter
protection and necessary inspections.
◆◆ Pack the equipment strictly before transportation. Use a sealed box for long-distance
transportation.
◆◆ Never transport this equipment with other equipment or materials that may harm or have
negative impacts on this equipment.
WARNING
◆◆ Use professional loading and unloading equipment to carry large-scale or heavy equipment.
◆◆ When carrying this equipment with bare hands, hold the equipment casing firmly with care to
prevent parts falling. Failure to comply may result in personal injuries.
◆◆ Handle the equipment with care during transportation and mind your step to prevent personal
injuries or equipment damage.
◆◆ Never stand or stay below the equipment when the equipment is lifted by hoisting equipment.
Installation
WARNING
◆◆ Thoroughly read the safety instructions and user guide before installation.
◆◆ Do not modify this equipment.
◆◆ Do not rotate the equipment components or loosen fixed bolts (especially those marked in red)
on equipment components.
◆◆ Do not install this equipment in places with strong electric or magnetic fields.
◆◆ When this equipment is installed in a cabinet or final equipment, protection measures such as
a fireproof enclosure, electrical enclosure, or mechanical enclosure must be provided. The IP
rating must meet IEC standards and local laws and regulations.

Safety Instructions
- 6 -
DANGER
◆◆ Equipment installation, wiring, maintenance, inspection, or parts replacement must be
performed by only professionals.
◆◆ Installation, wiring, maintenance, inspection, or parts replacement must be performed by only
experienced personnel who have been trained with necessary electrical information.
◆◆ Installation personnel must be familiar with equipment installation requirements and relevant
technical materials.
◆◆ Before installing equipment with strong electromagnetic interference, such as a transformer,
install an electromagnetic shielding device for this equipment to prevent malfunctions.
Wiring
DANGER
◆◆ Never perform wiring at power-on. Failure to comply will result in an electric shock.
◆◆ Before wiring, cut off all equipment power supplies. Wait at least 10 minutes before further
operations because residual voltage exists after power-off.
◆◆ Make sure that the equipment is well grounded. Failure to comply will result in an electric
shock.
◆◆ During wiring, follow the proper electrostatic discharge (ESD) procedures, and wear an
antistatic wrist strap. Failure to comply will result in damage to internal equipment circuits.
WARNING
◆◆ Never connect the power cable to output terminals of the equipment. Failure to comply may
cause equipment damage or even a fire.
◆◆ When connecting a drive with the motor, make sure that the phase sequences of the drive and
motor terminals are consistent to prevent reverse motor rotation.
◆◆ Wiring cables must meet diameter and shielding requirements. The shielding layer of the
shielded cable must be reliably grounded at one end.
◆◆ After wiring, make sure that no screws are fallen and cables are exposed in the equipment.

Safety Instructions
- 7 -
Power-on
DANGER
◆◆ Before power-on, make sure that the equipment is installed properly with reliable wiring and
the motor can be restarted.
◆◆ Before power-on, make sure that the power supply meets equipment requirements to prevent
equipment damage or even a fire.
◆◆ At power-on, unexpected operations may be triggered on the equipment. Therefore, stay away
from the equipment.
◆◆ After power-on, do not open the cabinet door and protective cover of the equipment. Failure to
comply will result in an electric shock.
◆◆ Do not touch any wiring terminals at power-on. Failure to comply will result in an electric
shock.
◆◆ Do not remove any part of the equipment at power-on. Failure to comply will result in an
electric shock.
Operation
DANGER
◆◆ Do not touch any wiring terminals during operation. Failure to comply will result in an electric
shock.
◆◆ Do not remove any part of the equipment during operation. Failure to comply will result in an
electric shock.
◆◆ Do not touch the equipment shell, fan, or resistor for temperature detection. Failure to comply
will result in heat injuries.
◆◆ Signal detection must be performed by only professionals during operation. Failure to comply
will result in personal injuries or equipment damage.
WARNING
◆◆ Prevent metal or other objects from falling into the device during operation. Failure to comply
may result in equipment damage.
◆◆ Do not start or stop the equipment using the contactor. Failure to comply may result in
equipment damage.
Maintenance
DANGER
◆◆ Do not maintain the equipment at power-on. Failure to comply will result in an electric shock.
◆◆ Before maintenance, cut off all equipment power supplies and wait at least 10 minutes.
WARNING
◆◆ Perform daily and periodic inspection and maintenance for the equipment according to
maintenance requirements and keep a maintenance record.

Safety Instructions
- 8 -
Repair
DANGER
◆◆ Do not repair the equipment at power-on. Failure to comply will result in an electric shock.
◆◆ Before inspection and repair, cut off all equipment power supplies and wait at least 10 minutes.
WARNING
◆◆ Require repair services according to the product warranty agreement.
◆◆ When the equipment is faulty or damaged, require professionals to perform troubleshooting
and repair by following repair instructions and keep a repair record.
◆◆ Replace quick-wear parts of the equipment according to the replacement guide.
◆◆ Do not operate damaged equipment. Failure to comply may result in worse damage.
◆◆ After the equipment is replaced, perform wiring inspection and parameter settings again.
Disposal
WARNING
◆◆ Retire equipment by following local regulations or standards. Failure to comply may result in
property damage, personal injuries, or even death.
◆◆ Dispose of or recycle retired equipment by following industry waste disposal standards to
avoid environmental pollution.

Safety Instructions
- 9 -
Safety Signs
■■ Description of safety signs in the user guide
i Read the user guide before installation and operation.
Reliably ground the system and equipment.
Danger!
High temperature!
Prevent personal injuries caused by machines.
High voltage!
**min
Wait xx minutes before further operations.
■■ Description of safety signs on the equipment
For safe equipment operation and maintenance, comply with safety signs on the
equipment, and do not damage or remove the safety labels. The following table
describes the safety signs.
Safety Sign Description
◆◆ Read the user guide before installation and operation. Failure
to comply will result in an electric shock.
◆◆ Do not remove the cover at power-on or within 10 minutes
after power-off.
◆◆ Before maintenance, inspection, and wiring, cut off input and
output power, and wait at least 10 minutes until the power
indicator is off.

Contents
- 10 -
Contents
Preface......................................................................................................................................... 1
Revision History.......................................................................................................................... 3
Safety Instructions...................................................................................................................... 4
Safety Precautions................................................................................................................ 4
Safety Levels and Definitions.............................................................................................. 4
Safety Instructions................................................................................................................ 4
Safety Signs........................................................................................................................... 9
1 Product Information............................................................................................................ 12
1.1 Nameplate and Model Number................................................................................... 12
1.2 Components................................................................................................................. 13
1.3 Technical Data............................................................................................................... 15
1.4 Overall Dimensions...................................................................................................... 21
1.4.1 Overall Dimensions of MD500T0.4GB to MD500T160G and MD500-2T0.4GB to
MD500-2T55G........................................................................................................ 21
1.4.2 Overall Dimensions of MD500T200G to MD500T450G.......................................... 23
1.4.3 Overall Dimensions of MD500T200G-L to MD500T450G-L................................... 24
2 System Connections............................................................................................................ 26
2.1 MD500 System Connection Diagram........................................................................... 26
2.2 MD500 System Structure.............................................................................................. 27
2.3 Options.......................................................................................................................... 28
2.4 Selection of Cables, Breakers, and Contactors.......................................................... 31
2.5 Selection of the AC Output Reactor............................................................................. 35
2.6 Selection of Braking Components............................................................................... 37
2.7 External Operating Panels............................................................................................ 40
3 Installation and Wiring........................................................................................................ 43
3.1 Installation.................................................................................................................... 43
3.1.1 Installation Environment...................................................................................... 43
3.1.2 Backplate Mounting and Through-Hole Mounting...............................................44
3.1.3 Mounting in the Cabinet........................................................................................ 46
3.2 Wiring............................................................................................................................. 49
3.2.1 Standard Wiring Diagram...................................................................................... 49
3.2.2 Main Circuit Terminals.......................................................................................... 50
3.2.3 Control Circuit Terminals...................................................................................... 51

Contents
- 11 -
4 Panel Operations................................................................................................................. 54
4.1 Introduction.................................................................................................................. 54
4.2 Keys on the Operating Panel........................................................................................ 54
4.3 Indicators on the Operating Panel.............................................................................. 55
5 Basic Operations and Trial Run........................................................................................... 56
5.1 Quick Commissioning.................................................................................................. 56
5.2 Precautions Before Power-on...................................................................................... 56
5.3 Status Display After Power-on..................................................................................... 57
5.4 Parameter Initialization................................................................................................ 57
5.5 Motor Control Modes.................................................................................................... 58
5.6 Auto-tuning................................................................................................................... 58
6 Troubleshooting and Solutions.......................................................................................... 60
6.1 Fault Codes and Solutions........................................................................................... 60
6.2 Common Symptoms and Solutions............................................................................ 66
7 Maintenance......................................................................................................................... 69
7.1 Routine Maintenance................................................................................................... 69
7.2 Periodic Inspection....................................................................................................... 70
7.3 Replacement of Wear Parts.......................................................................................... 70
7.3.1 Service Life of Wear Parts...................................................................................... 70
7.3.2 Replacing Cooling Fans......................................................................................... 71
7.4 Storage.......................................................................................................................... 72
Appendix A Parameter Table.................................................................................................... 73
A.1 Standard Parameter Table........................................................................................... 73
A.2 Monitoring Parameters................................................................................................ 99
Warranty Agreement............................................................................................................... 102

1 Product Information
- 12 -
1.1 Nameplate and Model Number
MODEL： MD500T55GB
INPUT： 3PH AC 380-480V 106.0A 50Hz/60Hz
OUTPUT：3PH AC 0-480V 112.0A 0-500Hz 55kW
S/N： XXXXXXXXXXXXXXXX
Suzhou Inovance Technology Co., Ltd.
Model
Rated input
Rated output
Manufacturing
S/N
Nameplate
Certificates
MD500 T 55 G B
Mark Product
MD500 AC drive series
Mark Voltage Class
T Three phase 380–480 V
Mark PowerClass (kW)
0.4 0.4
... ...
450 450
Mark Applicable Motor Type
G General
Mark Reactor
-L
With the output AC
reactor, applicable to
MD500T200G-L to
MD500T450G-L
-T
With the DC reactor,
applicable to
MD500T18.5G to
MD500T22G
NoneBlank
Mark Braking Unit
Blank None
B With the braking unit
2T Three phase 200–240 V
Figure 1-1 Nameplate and ordering code

- 13 -
1.2 Components
The AC drive has either a plastic housing (three-phase 380 V, 0.4 to 15 kW models and
three-phase 220 V, 0.4 to 7.5 kW models used as an example) or a sheet metal housing
(200 to 450 kW models used as an example), depending on the voltage and power class,
as shown in the following figures.
Description
i
10min
DANGER! Do not remove the front cover while
the power is on or within 10 minutes after the
power is turned off.
CAUTION! Read the user guide carefully before
installation or operation.
Warning Label
Live indicator
Donot remove/install the AC drive
whenthe indicator is on.
Housing
Cable support bracket
Main circuit terminals
See"3.2.2 MainCircuit Terminals".
EMC and VDR screws
See"10) Power grid system" in "3.2.2
Functions of Main Circuit Terminals
andPrecautions" and"8.2.2 Main
Circuit InsulationTest" in 19010355
MD500 SeriesAC Drive AdvancedUser
Guide.
Front cover
For details about itsremoval, see
"3.1.5 Cover Removal andRefitting" in
19010355MD500 SeriesAC Drive
Advanced User Guide.
Logo
Control circuit terminals
See"3.2.3 Control Circuit Terminals".
Ground bar
Ground the PG card andcontrol board.
Fixing pin of extension card
See"11Optional Cards" in 19010355
Guide.
Fixing pin of extension
encoder card
See"11Optional Cards" in 19010355
Guide.
Operating panel, see section 4.1.
Fixing pin of ground cable of
the control board
Note: The ground cable can only be
connectedtothe ground bar after the
systemis groundedreliably.
Barcode (0.4–11 kW)
View the serial number and model
of the AC drive here.
Fan cover
Warning labels
Nameplate
See"1.1 Nameplate and Product
Code".
Cooling fan
For details about itsreplacement,
see "8.3.3 Replacing the Cooling
Fan" in 19010355MD500 SeriesAC
Drive AdvancedUser Guide.
Interface of external
operating panel
See"2.7 External Operating
Panels".
Barcode (15 kW)
View the serial number and model
of the AC drive here.
Grounding terminals
Figure 1-2 Product parts (MD500T0.4GB to MD500T15GB, MD500-2T0.4GB to MD500-2T7.5GB)

- 14 -
Logo
Warning labels
Positive and negative
wiring terminals
Cable clamp
Castor
Housing
Bottom hoist hole
Main circuit terminals
Tophoist rings
Protective cover of positive
and negative terminals
Nameplate
Handle
Label of main circuit
wiring
Description
i
DANGER! Do notremove the front coverwhile the
power is onor within 10 minutes after the poweris
turned off.
CAUTION! Read the user guide carefullybefore
installation or operation.
Warning Label
Fanbox
For its replacement, see
"7.3.2 Replacing
Cooling Fans".
Control circuit terminals
See"3.2.3 Control Circuit
Terminals".
Grounding terminals
See"3.2.2 MainCircuit
Terminals".
Live indicator
Donot remove/installthe AC drive
whenthe indicator is on.
EMC and VDR screws
See"10) Power grid system" in
"3.2.2 Functions of Main Circuit
Terminalsand Precautions" and
"8.2.2 MainCircuit Insulation
Test" in 19010355MD500 Series
AC Drive Advanced User Guide.
Ground bar
Ground the controlboard.
Fixing pinof extensioncard
See"11OptionalCards" in
19010355MD500 SeriesAC Drive
Advanced User Guide.
Operating panel
See"4.1 Introduction".
Cabling tray andfixing pin of
ground cable of the control
board
Note: The ground cable can only
be connectedtothe ground bar
after the system isgrounded
reliably.
Interface of external
operating panel
See"2.7 ExternalOperating
Panels".
Barcode
View the serial number and
modelof the AC drive here.
Front cover
For details about its
removal, see"3.1.5
Cover Removal and
Refitting" in
19010355MD500
SeriesAC Drive
Advanced User
Guide.
10min
Figure 1-3 Product parts (MD500T200G to MD500T450G)

- 15 -
1.3 Technical Data
Table 1-1 Models and technical data (three phase 380–480 V)
Item Specification
MD500TXXG(B) 0.4 0.7 1.1 1.5 2.2 3.0 3.7 5.5 7.5 11 15 18.5 22 30 37
Output
Applicable
motor
(kW) 0.4 0.75 1.1 1.5 2.2 3.0 3.7 5.5 7.5 11 15 18.5 22 30 37
(HP) 0.5 1 1.5 2 3 4 5 7.5 10 15 20 25 30 40 50
Rated output
current (A)
1.5 2.1 3.1 3.8 5.1 7.2 9.0 13.0 17.0 25.0 32.0 37 45 60 75
Output voltage 0 to input voltage
Maximum output
frequency
500 Hz (editable through a parameter)
Carrier
frequency
0.8 to 8.0 kHz (automatically adjusted according to the load characteristics)
Overload
capacity
150% for 60s with rated current
Input
Rated input
current (A)
1.8 2.4 3.7 4.6 6.3 9.0 11.4 16.7 21.9 32.2 41.3 49.5 59 57 69
Rated voltage/
frequency
AC: Three-phase 380 to 480 V, 50/60 Hz
Allowed voltage
fluctuation
-15% to 10%; actual allowed range: 323 to 528 VAC
Allowed
frequency
fluctuation
±5%
Power capacity
(kVA)
2 2.8 4.1 5 6.7 9.5 12 17.5 22.8 33.4 42.8 45 54 52 63
Thermal
design
Thermal power
consumption
(kW)
0.039 0.046 0.057 0.068 0.081 0.109 0.138 0.201 0.24 0.355 0.454 0.478 0.551 0.694 0.815
Air flow (CFM) - - - 9 9 9 20 24 30 40 42 51.9 57.4 118.5 118.5
Item Specification
MD500TXXG(B) 45 55 75 90 110 132 160 200 220 250 280 315 355 400 450
Output
Applicable
motor
(kW) 45 55 75 90 110 132 160 200 220 250 280 315 355 400 450
(HP) 60 75 100 125 150 180 220 275 300 340 380 430 485 545 615
Rated output
current (A)
91 112 150 176 210 253 304 377 426 465 520 585 650 725 820
Maximum output
frequency
Carrier frequency
0.8 to 8.0 kHz 0.8 to 6.0 kHz
Automatically adjusted according to the load characteristics
Overload capacity 150% for 60s with rated current (MD500T450G: 130% for 60s with the rated current)
Input
Rated input current
(A)
89 106 139 164 196 240 287 365 410 441 495 565 617 687 782
Rated voltage/
frequency
Allowed voltage
fluctuation
Allowed frequency
fluctuation
±5%
Power capacity
(kVA)
81 97 127 150 179 220 263 334 375 404 453 517 565 629 716

- 16 -
Item Specification
Thermal
design
Thermal power
consumption (kW)
1.01 1.21 1.57 1.81 2.14 2.85 3.56 4.15 4.55 5.06 5.33 5.69 6.31 6.91 7.54
Air flow (CFM) 122.2 122.2 218.6 287.2 354.2 547 627 638.4 722.5 789.4 882 645 860 860 860
Table 1-2 Models and technical data (three phase 200–240 V)
Item Specification
MD500-2TXXG(B) 0.4 0.7 1.1 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55
Output
Applicable
motor
(kW) 0.4 0.75 1.1 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55
(HP) 0.5 1 1.5 2 3 5 7.5 10 15 20 25 30 40 50 60 75
Rated output
current (A)
2.1 3.8 5.1 7.2 9 13 25 32 45 60 75 91 112 150 176 210
Maximum
output
frequency
Carrier
frequency
0.8 to 8.0 kHz (automatically adjusted according to the load characteristics)
Overload
capacity
150% for 60s with rated current
Input
Rated input
current (A)
2.4 4.6 6.3 9 11.4 16.7 32.2 41.3 59 57 69 89 106 139 164 196
Rated voltage/
frequency
Allowed voltage
fluctuation
Allowed
frequency
fluctuation
±5%
Power capacity
(kVA)
1.1 2.1 2.9 4.2 5.3 7.7 14.8 18.9 27 27 31.6 40.7 48.5 63.6 75 89.7
Thermal
design
Thermal power
consumption
(kW)
0.037 0.054 0.065 0.087 0.11 0.16 0.28 0.36 0.44 0.55 0.65 0.8 0.97 1.26 1.45 1.71
Air flow (CFM) / 9 9 9 20 24 40 42 57.4 118.5 118.5 122.2 122.2 218.6 287.2 354.2
NOTE
◆◆ The technical data of MD500T18.5G(B)(-T) to MD500T22G(B)(-T) is similar to that of
MD500T18.5G(B) to MD500T22G(B).
◆◆ The rated power is measured at 440 VAC input voltage.

- 17 -
Table 1-3 Technical specifications of the MD500 series AC drive
Item Description
Standard
functions
Input frequency resolution
Digital setting: 0.01 Hz
Analog setting: Maximum frequency x 0.025%
Control mode
Sensorless vector control (SVC)
Feedback vector control (FVC)
Voltage/Frequency (V/F) control
Startup torque
0.25 Hz/150% (SVC)
0 Hz/180% (FVC)
Speed range 1:200 (SVC) 1:1000 (FVC)
Speed stability accuracy ±0.5% (SVC) ±0.02% (FVC)
Torque control accuracy ±3% (FVC); ±5% for 5 Hz above (SVC)
Torque boost Automatic boost; Customized boost 0.1 % to 30.0 %
V/F curve
Straight-line V/F curve
Multi-point V/F curve
Complete V/F separation
Half V/F separation
Ramp mode
Straight-line ramp
S-curve ramp
Four separate acceleration/deceleration time settings in
the range of 0.0s to 6500.0s.
DC injection braking
DC injection braking frequency: 0 Hz to the maximum
frequency
DC injection braking active time: 0.0s to 36.0s.
Current level of DC injection braking: 0.0% to 100.0%.
Jog running
Frequency range of jog running: 0.00 to 50.00 Hz
Acceleration/Deceleration time of jog running: 0.0s to
6500.0s
Simple PLC and multi-
speed running
The system implements up to 16 speeds by using the
simple PLC function or control terminals.
Built-in PID
The system implements the proportional–integral–
derivative (PID) function in the closed-loop control.
Automatic voltage
regulation (AVR)
The system maintains a constant output voltage
automatically when the grid voltage changes through
the permissible range.
Overvoltage and
overcurrent stall control
The system limits the output current and voltage
automatically during operation to prevent frequent or
excessive trips.
Overcurrent fast
prevention
The function helps to avoid frequent overcurrent faults.
Torque limit and control
The system limits the torque automatically to prevent
frequent overcurrent tripping during operation.
Torque control is applied in vector control.

- 18 -
Item Description
Customized
functions
Power dip ride-through
The load feedback energy compensates for any voltage
reduction, allowing the AC drive to continue to operate
for a short time during power dips.
Overcurrent fast
prevention
The function helps to avoid frequent overcurrent faults.
Virtual I/O
Five groups of virtual digital inputs/outputs (DI/DO)
support simple logic control.
Timing control Time range: 0.0 to 6500.0 minutes
Dual-motor switchover
The AC drive can control up to two motors using two
groups of motor parameters.
Multiple field buses
The AC drive supports four field buses: Modbus,
PROFIBUS-DP, CANlink, and CANopen.
Motor overheat protection
The optional input/output (I/O) extension card allows
the AI3 terminal to receive a signal from the motor
temperature sensor input (PT100, PT1000) to implement
motor overheat protection.
Multiple encoder types
The AC drive supports a range of different encoder
types, including the differential encoder, open-collector
encoder, UVW encoder, and resolver.
User programmable
function
The optional programming card supports secondary
development in a programming environment
compatible with the Inovance programmable logic
controller (PLC).
Advanced commissioning
software
Software in the AC drive allows users to configure
some operating parameters, and provides a virtual
oscilloscope display that shows system status.

- 19 -
Item Description
Running
Running command
Allows different methods of switching between running
commands: Operating panel; terminal I/O control; and
serial communication
Main frequency reference
setting channel
Supports up to 10 frequency reference setting channels
and allows different methods of switching between
frequency reference setting channels:
◆◆ Digital setting
◆◆ Analog voltage reference
◆◆ Analog current reference
◆◆ Pulse reference
◆◆ Communication reference
Auxiliary frequency
reference setting channel
Supports up to 10 auxiliary frequency sources, and
allows fine tuning of the auxiliary frequency and main &
auxiliary calculation.
Input terminals
Standard:
◆◆ Five digital input (DI) terminals, one of which
supports up to 100 kHz high-speed pulse inputs
◆◆ Two analog input (AI) terminals, one of which
supports only 0 to 10 V input, and the other
supports 0 to 10 V and 0 to 20 mA current input
Expanded capacity:
◆◆ Five digital input (DI) terminals
◆◆ One AI terminal that supports –10 to +10 V voltage
input and PT100/PT1000 motor temperature sensor
inputs
Output terminals
Standard:
◆◆ Single high-speed pulse output terminal (open-
collector) for a square-wave signal output in the
frequency range of 0 to 100 kHz
◆◆ Single DO terminal
◆◆ Single relay output terminal
◆◆ Single analog output (AO) terminal that supports
either a current output in the range 0 to 20 mA or a
voltage output in the range 0 to 10 V
Expanded capacity:
◆◆ Single digital output (DO) terminal
◆◆ Single relay output terminal
Single analog output (AO) terminal that supports either
a current output in the range 0 to 20 mA or a voltage
output in the range 0 to 10 V
Display and
operating
panel
LED display Shows parameters.
LCD display
It is optional and shows parameters in Chinese or
English.
Parameter copy
The LCD operating panel can be used to copy
parameters quickly.
Key locking and function
selection
Keys on the control panel can be locked partially or
electronically to prevent accidental operation.

- 20 -
Item Description
Protections
Phase loss protection
Input phase loss protection
Output phase loss protection
Instantaneous overcurrent
protection
The AC drive stops when 250% of the rated output
current is exceeded.
Overvoltage protection
The AC drive stops when the DC voltage of the main
circuit is above 820 V.
Undervoltage protection
The AC drive stops when the DC voltage of the main
circuit is below 350 V.
Overheat protection
Protection is triggered when the inverter bridge gets
overheated.
Overload protection
The AC drive stops after running at 150% of rated
current for 60 seconds.
Overcurrent protection
The AC drive stops when 2.5 times of rated current of
the AC drive is exceeded.
Braking protection
Braking unit overload protection
Braking resistor short-circuit protection
Short-circuit protection
Output phase-to-phase short-circuit protection
Output phase-to-ground short-circuit protection
Environment
Installation location
Install the AC drive where it is indoors and protected
from direct sunlight, dust, corrosive or combustible
gases, oil smoke, vapor, ingress of water or any other
liquid, and salt.
Altitude
Below 1000 m
If the altitude exceeds 1000 m, de-rating by 1% for per
100 m increase
Maximum altitude: 3000 m
(Note: The maximum altitude for 0.4 to 3 kW models
is 2000 m. For use at the altitude higher than 2000 m,
contact the agent or Inovance.)
Ambient temperature
-10℃ to +50℃
If the ambient temperature is 40℃ to 50℃ , de-rating by
1.5% per 1℃ increase
Humidity Less than 95% RH non-condensing
Vibration Less than 5.9 m/s² (0.6 g)
Storage temperature -20℃ to +60℃

- 21 -
1.4 Overall Dimensions
1.4.1 Overall Dimensions of MD500T0.4GB to MD500T160G and MD500-
2T0.4GB to MD500-2T55G
A
W
B
H
Dd x 4
Figure 1-4 Overall and mounting dimensions of MD500T0.4GB to MD500T15GB and MD500-
2T0.4GB to MD500-2T7.5GB
A
W
B
H
D
d x 4
Figure 1-5 Overall and mounting dimensions of MD500T18.5G(B)to MD500T37G(B) and MD
500-2T11G(B) to MD500-2T18.5G(B)

- 22 -
D
W
A
H
B
H1
d x 4
Figure 1-6 Overall and mounting dimensions of MD500T45G(B) to MD500T160G and MD
500-2T22G(B) to MD500-2T55G
Table 1-4 Mounting hole dimensions of MD500T0.4GB to MD500T160G (three phase 380–480 V)
Model
Hole
Dimensions
(mm)
Overall Dimensions (mm)
Hole
Diameter
(mm)
Weight
(kg)
A B H H1 W D d
MD500T0.4GB
119 189 200 - 130 152 Ø5 1.6
MD500T0.7GB
MD500T1.1GB
MD500T1.5GB
MD500T2.2GB
MD500T3.0GB
MD500T3.7GB
119 189 200 - 130 162 Ø5 2.0
MD500T5.5GB
MD500T7.5GB
128 238 250 - 140 170 Ø6 3.3
MD500T11GB
MD500T15GB 166 266 280 - 180 170 Ø6 4.3
MD500T18.5G(B)
195 335 350 - 210 192 Ø6 7.6
MD500T22G(B)
MD500T18.5G(B)-T
195 335 350 - 210 192 Ø6 10.0
MD500T22G(B)-T
MD500T30G(B)
230 380 400 - 250 220 Ø7 17.5
MD500T37G(B)
MD500T45G(B)
245 523 525 542 300 275 Ø10 35.0
MD500T55G(B)
MD500T75G(B)
270 560 554 580 338 315 Ø10 51.5MD500T90G
MD500T110G
MD500T132G
320 890 874 915 400 320 Ø10 85.0
MD500T160G

- 23 -
Table 1-5 Mounting hole dimensions of MD500-2T0.4GB to MD500-2T55G (three phase
200–240 V)
Model
Hole
Dimensions
(mm)
Overall Dimensions (mm)
Hole
Diameter
(mm)
Weight
(kg)
A B H H1 W D d
MD500-2T0.4GB
119 189 200 - 130 152 Ø5 1.6
MD500-2T0.7GB
MD500-2T1.1GB
MD500-2T1.5GB
MD500-2T2.2GB
119 189 200 - 130 162 Ø5 2.0
MD500-2T3.7GB
MD500-2T5.5GB 128 238 250 - 140 170 Ø6 3.3
MD500-2T7.5GB 166 266 280 - 180 170 Ø6 4.3
MD500-2T11G(B) 195 335 350 - 210 192 Ø6 10.0
MD500-2T15G(B)
230 380 400 - 250 220 Ø7 17.5
MD500-2T18.5G(B)
MD500-2T22G(B)
245 523 525 542 300 275 Ø10 35.0
MD500-2T30G(B)
MD500-2T37G(B)
270 560 554 580 338 315 Ø10 51.5MD500-2T45G
MD500-2T55G
1.4.2 Overall Dimensions of MD500T200G to MD500T450G
W A1
A2
D
W1
H1
H
D1
62
A1
B1
B2
Figure 1-7 Overall and mounting dimensions of MD500T200G to MD500T450G

- 24 -
Table 1-6 Mounting hole dimensions of MD500T200G to MD500T450G
Model
Hole Dimensions (mm) Overall Dimensions (mm)
Hole
Diameter
(mm)
Weight
(kg)
A1 A2 B1 B2 H H1 W W1 D D1
MD500T200G
240 150 1035 86 1086 1134 300 360 500 Ø13 110
MD500T220G
MD500T250G
225 185 1175 97 1248 1284 330 390 545 Ø13 155
MD500T280G
MD500T315G
240 200 1280 101 1355 1405 340 400 545 Ø16 185
MD500T355G
MD500T400G
MD500T450G
1.4.3 Overall Dimensions of MD500T200G-L to MD500T450G-L
D1
62
B2
B1
D A1
A2
W
W1
H1 H
Figure 1-8 Overall and mounting dimensions of MD500T200G-L to MD500T450G-L (with the
reactor base)

- 25 -
Table 1-7 Mounting hole dimensions of MD500T200G-L to MD500T450G-L (with the reactor
base)
Model
Hole Dimensions (mm) Overall Dimensions (mm)
Hole
Diameter
(mm)
Weight
(kg)
A1 A2 B1 B2 H H1 W W1 D D1
MD500T200G-L
240 150 1035 424 1424 1472 300 360 500 Ø13 160
MD500T220G-L
MD500T250G-L
225 185 1175 435 1586 1622 330 390 545 Ø13 215
MD500T280G-L
MD500T315G-L
240 200 1280 432 1683 1733 340 400 545 Ø16 245
MD500T355G-L
MD500T400G-L
MD500T450G-L

2 System Connections
- 26 -
2.1 MD500 System Connection Diagram
When using the AC drive to drive asynchronous motors, a variety of electrical devices
must be installed on both input and output sides to ensure system safety and stability.
The following figure shows how to configure the AC drive (0.4 kW and above) to operate
with the peripheral devices.
Figure 2-1 MD500 series system composition
NOTE
◆◆ The preceding figure is just a schematic system connection diagram of the MD500 series
AC drive. For peripherals and options, see "9 Specifications and Model Selection" in
19010355 MD500 Series AC Drive Advanced User Guide.

- 27 -
2.2 MD500 System Structure
Description of peripheral electrical devices in the MD500 series AC drive system
Device Mounting Location Function Description
Breaker
Between the power
supply and AC drive
input side
MCCB: Cuts off power supply when overcurrent occurs
on downstream devices.
Leakage breaker: Provides protection against potential
leakage current during drive running to prevent
electric shock and even a fire.
Fuse
Between the power
supply and AC drive
input side
Provides protection in case of short circuit.
(Electromagnetic)
Contactor
Between the breaker
and AC drive input
side
Switches ON/OFF the AC drive. Do not start/stop the
AC drive frequently by switching the contactor ON/OFF
(time interval is at least one hour) nor use it to directly
start the AC drive.
Input reactor AC drive input side
Improves the power factor of power input side.
Eliminates higher harmonics of the input side
effectively and prevents other devices from being
damaged due to distortion of voltage waveform.
Eliminates input current unbalance caused by inter-
phase unbalance.
EMC filter AC drive input side
Reduces external conduction and radiation
interference of the AC drive.
Decreases conduction interference flowing from
power supply to the AC drive and improve the anti-
interference capacity of the AC drive.
Braking resistor
Between the main
circuit terminals (+)
and BR
Use a braking resistor for the GB-type models.
Dissipates regenerative energy during motor
deceleration.
Braking unit
Between the main
circuit terminals (+)
and (-)
Use Inovance's braking unit MDBUN and MDBU and
recommended braking resistor for full series except the
GB-type model.
Dissipates regenerative energy during motor
deceleration.
Output reactor
Between the AC
drive output side
and the motor, close
to the AC drive
The output side of the AC drive generally has much
higher harmonics. When the motor is far from the AC
drive, there is much distributed capacitance in the
circuit and certain harmonics may cause resonance in
the circuit, which will:
1) Degrade motor insulation performance and
damage the motor in long run.
2) Generate large leakage current and cause frequent
AC drive protection trips.
If the distance between the AC drive and the motor is
greater than 100 m, install an AC output reactor.

- 28 -
Device Mounting Location Function Description
dv/dt reactor
AC drive output side,
close to the AC drive
Optional. Protects motor insulation and reduces
bearing current.
Output magnetic
ring
AC drive output side,
close to the AC drive
Reduces bearing current.
Motor AC drive output side Select an appropriate motor.
External operating
panel
Interface of the
external operating
panel
External LED operating panel MD32NKE1 and LCD
operating panel MDKE9
NOTE
◆◆ Do not install a capacitor or surge protection device (SPD) on the output side of AC
drive. Otherwise, the AC drive, capacitor, or SPD may be damaged.
◆◆ Inputs/Outputs (main circuit) of the AC drive contain harmonics, which may
interfere with the communication device connected to the AC drive. Therefore,
install an anti-interference filter to minimize interference.
2.3 Options
Peripherals and options include braking units and function extension cards, as listed in
the following table. For use of each option, see its user manual. If you need to purchase
the following options, specify the required option in the order.
Table 2-1 Options
Name Model Description Remarks
Built-in braking
unit
GB-type
Three phase 380–480 V models: not
optional for 0.4–15 kW; optional for 18.5–75
kW
Three phase 200–240 V models: not
optional for 0.4–7.5 kW, optional for 11–37
kW
-
External braking
unit
MDBUN and
MDBU
Three phase 380–480 V models: 90 kW and
above
Three phase 200–240 V models: 45 kW and
above
Multiple braking units
of 90 kW or above are
connected in parallel.
I/O extension
card 1
MD38IO1
Provides:
◆◆ Five extra DI terminals
◆◆ An analog input (AI3) terminal
◆◆ A relay output terminal
◆◆ A digital output terminal
◆◆ An analog output terminal
MODBUS/CANlink supported
Can be connected to PT100 and PT1000.
Available for models of
15 kW or above
I/O extension
card 2
MD38IO2 Provides three extra DI terminals. Available for all models

- 29 -
I/O extension
card 3
MD38IO3
Provides:
◆◆ Three extra DI terminals
◆◆ One RS-485 communication signal
isolation input terminal
◆◆ One NO relay output terminal
Available for all models
RS-485
communication
card
MD38TX1
Provides the isolated Modbus
communication adapter card.
CANlink
communication
card
MD38CAN1 CANlink communication adapter card Available for all models
CANopen
communication
card
MD38CAN2 CANopen communication adapter card Available for all models
Profbus-DP
communication
card
MD38DP2 Profbus-DP communication card
15 kW or above
PROFINET
communication
extension card
MD500-PN1 PROFINET communication adapter card Available for all models
User
programmable
card
MD38PC1
User programmable extension card
Compatible with H1U-Series PLCs of
Inovance
15 kW or above
Differential
encoder
interface card
MD38PG1
Differential encoder resolver interface card,
5 V power supply
Resolver
interface card
MD38PG4
For use with a resolver that has an
excitation frequency of 10 kHz
The card has a DB9 interface.
Open collector
encoder
interface card
MD38PG5
Open collector encoder interface card, 1:1
frequency dividing, 15 V power supply
Open collector
encoder
interface card
MD38PG5D
Open collector encoder interface card,
optional multiplying frequency division
output, 15 V power supply
Differential
encoder
interface card
MD38PG6
5 V power supply
Differential
encoder
interface card
MD38PG6D
optional multiplying frequency division
output, 5 V power supply

- 30 -
MD38PGMD new
multi-functional
encoder card
MD38PGMD
◆◆ Compatible with differential input,
open-collector input, and push-pull
input
◆◆ Differential output and open-collector
output supported
◆◆ Compatible with A/B phase input
interfaces of often-used encoders and
host controllers.
External LED
operating panel
MD32NKE1
Connected to the external LED operating
panel through the RJ45 interface
Available for the MD
series
External LCD
operating panel
MDKE9 External LCD display and operating panel
Parameter copy and
download supported
Mounting base
of the MDKE9
operating panel
CP600-
BASE1
- -
External
operating panel
cable
MDCAB
Standard: 8 cores
Can be connected to MD32NKE1, MD32KC,
and MDCP
Standard length: 3 m
Through-hole
mounting
bracket
MD500-AZJ-
A1T*
Used to mount the drive to the middle of
the cabinet
Each model has its
own bracket. For
details, see "Table
3-1 Through-hole
mounting bracket
models (three phase
380–480 V)".
Cable support
bracket
MD500-AZJ-
A2T*
Used for secondary fixing of power cables
and stable grounding of the shield
For details, see "Table
3-4 Specification
of the cabinet with
fans on the top" in
19010355 MD500 Series
AC Drive Advanced
User Guide.

- 31 -
2.4 Selection of Cables, Breakers, and Contactors
Table 2-2 Cable selection (three phase 380–480 V)
Model
RST/UVW Ground Cable Terminal
Width of
the AC
Drive (mm)
ScrewRecommended
Cable (mm2
) [1]
Recommended
Lug Model
Recommended
Cable (mm2
) [1]
Recommended
Lug Model
Three phase 380–480 V, 50/60 Hz
MD500T0.7GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500T1.1GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500T1.5GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500T2.2GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500T3.0GB 3 x 1 TNR1.25-4 1 TNR1.25-4 10.2 M4
MD500T3.7GB 3 x 1.5 TNR1.25-4 1.5 TNR1.25-4 10.2 M4
MD500T5.5GB 3 x 2.5 TNR2-4 2.5 TNR2-4 10.2 M4
MD500T7.5GB 3 x 4 TNR3.5-5 4 TNR3.5-5 13.0 M5
MD500T11GB 3 x 6 TNR5.5-5 6 TNR5.5-5 13.0 M5
MD500T15GB 3 x 10 TNR8-5 10 TNR8-5 14.3 M5
MD500T18.5G(B)(-T) 3 x 10 GTNR10-6 10 GTNR10-6 15.0 M6
MD500T22G(B)(-T) 3 x 16 GTNR16-6 16 GTNR16-6 15.0 M6
MD500T30G(B) 3 x 16 GTNR16-6 16 GTNR16-6 18.0 M6
MD500T90G 3 x 95 GTNR95-12 50 GTNR50-12 30.6 M12
MD500T110G 3 x 120 GTNR120-12 70 GTNR70-12 30.6 M12
MD500T132G 3 x 150 BC150-12 95 BC95-12 * M12
MD500T160G 3 x 185 BC185-12 95 BC95-12 * M12
MD500T200G(-L) 2 x (3 x 95) BC95-12 95 BC95-12 * M12
MD500T220G(-L) 2 x (3 x 120) BC120-12 120 BC120-12 * M12
MD500T250G(-L) 2 x (3 x 120) BC120-12 120 BC120-12 * M12
MD500T280G(-L) 2 x (3 x 150) BC150-12 150 BC150-12 * M12
MD500T315G(-L) 2 x (3 x 185) BC185-16 185 BC185-16 * M16
MD500T355G(-L) 2 x (3 x 185) BC185-16 185 BC185-16 * M16
MD500T400G(-L) 2 x (3 x 240) BC240-16 240 BC240-16 * M16
MD500T450G(-L) 2 x (3 x 240) BC240-16 240 BC240-16 * M16

- 32 -
Table 2-3 Cable selection (Three phase 380–480 V) (with UL certification)
Model
RST/UVW Ground Cable Terminal
Width of
the AC Drive
(mm)
ScrewRecommended
Cable (AWG/mil)
[2]
Recommended
Lug Model
Recommended
Cable (AWG/
Kcmil)[2]
Recommended
Lug Model
MD500T0.4GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T0.7GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T1.1GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T1.5GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T2.2GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T3.0GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T3.7GB 14 TLK2.5-4 2*14 TLK2.5-4 7.5 M4
MD500T5.5GB 10 TLK6-4 2*10 TLK6-4 10 M4
MD500T7.5GB 10 TLK6-5 2*10 TLK6-5 10 M5
MD500T11GB 8 TLK10-5 2*8 TLK10-5 12 M5
MD500T15GB 6 TLK16-5 6 TLK16-5 12 M5
MD500T18.5G(B)
(-T)
6 TLK16-6 6 TLK16-6 12 M6
MD500T22G(B)
(-T)
4 TLK25-6 4 TLK25-6 14 M6
MD500T30G(B) 4 TLK25-6 4 TLK25-6 14 M6
MD500T37G(B) 3 TLK35-6 4 TLK25-6 14 M6
MD500T45G(B) 2 TLK35-8 4 TLK25-8 16 M8
MD500T55G(B) 1/0 TLK70-8 3 TLK35-8 17 M8
MD500T75G(B) 3/0 TLK95-12 1 TLK50-12 23 M12
MD500T90G 4/0 TLK120-12 1/0 TLK70-12 23 M12
MD500T110G 300 SQNBS180-12 3/0 TLK95-12 26 M12
MD500T132G 400 TLK240-12 4/0 TLK120-12 28 M12
MD500T160G 500 TLK300-12 250 TLK150-12 31 M12
MD500T200G(-L) 4×1 TLK50-12 2×1 TLK50-12 23 M12
MD500T220G(-L) 4×1/0 TLK70-12 2×1/0 TLK70-12 23 M12
MD500T250G(-L) 4×1/0 TLK70-12 2×1/0 TLK70-12 23 M12
MD500T280G(-L) 4×2/0 TLK70-12 2×2/0 TLK70-12 23 M12
MD500T315G(-L) 4×3/0 TLK95-12 2×3/0 TLK95-12 26 M16
MD500T355G(-L) 4×4/0 TLK120-12 2×4/0 TLK120-12 28 M16
MD500T400G(-L) 4×4/0 TLK120-12 2×4/0 TLK120-12 28 M16
MD500T450G(-L) 4×300 TLK185-12 2×300 TLK185-12 35 M16

- 33 -
Table 2-4 Cable selection (three phase 200–240 V)
Model
RST/UVW Ground Cable Terminal Width
of the AC Drive
(mm)
ScrewRecommended
Cable (mm2
) [1]
Recommended
Lug Model
Recommended
Cable (mm2
) [1]
Recommended
Lug Model
Three phase 200 V to 240 V, 50/60 Hz
MD500-2T0.4GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500-2T0.7GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500-2T1.1GB 3 x 0.75 TNR0.75-4 0.75 TNR0.75-4 10.2 M4
MD500-2T1.5GB 3 x 1 TNR1.25-4 1 TNR1.25-4 10.2 M4
MD500-2T2.2GB 3 x 1.5 TNR1.25-4 1.5 TNR1.25-4 10.2 M4
MD500-2T3.7GB 3 x 2.5 TNR2-4 2.5 TNR2-4 10.2 M4
MD500-2T5.5GB 3 x 6 TNR5.5-5 6 TNR5.5-5 13.0 M5
MD500-2T7.5GB 3 x 10 TNR8-5 10 TNR8-5 14.3 M5
MD500-2T11G(B) 3 x 16 GTNR16-6 16 GTNR16-6 15.0 M6
MD500-2T18.5G(B) 3 x 25 GTNR25-6 16 GTNR16-6 18.0 M6
MD500-2T45G 3 x 95 GTNR95-12 50 GTNR50-12 30.6 M12
MD500-2T55G 3 x 120 GTNR120-12 70 GTNR70-12 30.6 M12
NOTE
[1] Suitable for the Chinese standard. "3 x 10" indicates one three-conductor
cable, and "2 x (3 x 95)" indicates two three-conductor cables.
[2] Suitable for the American standard. "5" indicates 5AWG, "1/0" indicates 0AWG,
"2/0" indicates 00AWG, "3/0" indicates 000AWG, "4/0" indicates 0000AWG, and
"2 x 250" indicates two 250 Kcmil cables.
[3] The preceding recommended lugs are the TNR, GTNR, and BC series lugs of
Suzhou Yuanli. The lugs with UL certifications are KST's TLK and SQNBS series
lugs.

- 34 -
Table 2-5 Contactor and breaker selection (three phase 380–480 V)
AC Drive Model
Recommended Fuse Bussmann
(with UL Certification)
Recommended
Contactor
Recommended Breaker
Rated Current
(A)
Model Rated Current (A) Rated Current (A)
MD500T0.4GB 5 FWP-5B 9 3
MD500T0.7GB 5 FWP-5B 9 4
MD500T1.1GB 10 FWP-10B 9 6
MD500T1.5GB 10 FWP-10B 9 6
MD500T2.2GB 10 FWP-10B 9 10
MD500T3.0GB 15 FWP-15B 12 13
MD500T3.7GB 20 FWP-20B 16 16
MD500T5.5GB 30 FWP-30B 26 25
MD500T7.5GB 40 FWP-40B 26 32
MD500T11GB 60 FWP-60B 38 50
MD500T15GB 70 FWH-70B 50 63
MD500T18.5G(B)(-T) 80 FWH-80B 65 63
MD500T22G(B)(-T) 100 FWH-100B 65 80
MD500T30G(B) 100 FWH-100B 65 80
MD500T37G(B) 125 FWH-125B 80 100
MD500T45G(B) 150 FWH-150B 95 160
MD500T55G(B) 200 FWH-200B 115 160
MD500T75G(B) 250 FWH-250A 150 250
MD500T90G 275 FWH-275A 170 250
MD500T110G 325 FWH-325A 205 250
MD500T132G 400 FWH-400A 245 400
MD500T160G 500 FWH-500A 300 400
MD500T200G(-L) 600 FWH-600A 410 500
MD500T220G(-L) 700 FWH-700A 410 630
MD500T250G(-L) 800 FWH-800A 475 630
MD500T280G(-L) 800 FWH-800A 620 800
MD500T315G(-L) 1000 170M5016 620 800
MD500T355G(-L) 1000 170M5016 620 800
MD500T400G(-L) 1400 170M6017 800 1000
MD500T450G(-L) 1400 170M6017 800 1000

- 35 -
Table 2-6 Contactor and breaker selection (three phase 200–240 V)
AC Drive Model
Recommended Fuse Bussmann
(with UL Certification)
Recommended
Contactor
Recommended Breaker
Rated
Current (A)
Model Rated Current (A) Rated Current (A)
MD500-2T0.4GB 5 FWP-5B 9 4
MD500-2T0.7GB 10 FWP-10B 9 6
MD500-2T1.1GB 10 FWP-10B 9 10
MD500-2T1.5GB 15 FWP-15B 12 13
MD500-2T2.2GB 20 FWP-20B 16 16
MD500-2T3.7GB 30 FWP-30B 26 25
MD500-2T5.5GB 60 FWP-60B 38 50
MD500-2T7.5GB 70 FWH-70B 50 63
MD500-2T11G(B) 100 FWH-100B 65 80
MD500-2T15G(B) 100 FWH-100B 65 80
MD500-2T18.5G(B) 125 FWH-125B 80 100
MD500-2T22G(B) 150 FWH-150B 95 160
MD500-2T30G(B) 200 FWH-200B 115 160
MD500-2T37G(B) 250 FWH-250A 150 250
MD500-2T45G 275 FWH-275A 170 250
MD500-2T55G 325 FWH-325A 205 250
2.5 Selection of the AC Output Reactor
Whether to install an AC output reactor on the power output side is dependent on actual
situations. Cable connecting the AC drive and motor cannot be too long. Otherwise,
capacitance enlarges and thus high-harmonics current may be easily generated. To
avoid these problems, install an AC output reactor close to the AC drive if the cable
length is equal to or larger than the values listed in the following table.
Table 2-7 Cable length limit with the output reactor configured (three phase 380–480 V)
AC Drive
Power (kW)
Rated
Voltage (V)
Minimum Cable
Length with
Output Reactor
Configured (m)
AC Drive
Power (kW)
Rated Voltage
(V)
Minimum Cable
Length with Output
Reactor Configured
(m)
0.4–4 200–500 50 15 200–500 125
5.5 200–500 70 18.5 200–500 135
7.5 200–500 100 ≧ 22 200–500 150
11 200–500 110

- 36 -
Table 2-8 Cable length limit with the output reactor configured (three phase 200–240 V)
AC Drive
Power (kW)
Rated
Voltage
(V)
Minimum Cable
Length with
Output Reactor
Configured (m)
AC Drive
Power
(kW)
Rated
Voltage
(V)
Minimum Cable
Length with
Output Reactor
Configured (m)
0.4–3 200–500 50 7.5 200–500 125
3.7 200–500 70 ≧ 11 200–500 150
5.5 200–500 110
Table 2-9 Recommended models of the AC output reactor (three phase 380–480 V)
AC Drive Model
AC Output Reactor Model
(Inovance)
AC Drive Model
(Inovance)
MD500T0.4GB MD-OCL-5-1.4-4T-1% MD500T18.5G(B)(-T) MD-OCL-50-0.14-4T-1%
MD500T0.7GB MD-OCL-5-1.4-4T-1% MD500T22G(B)(-T) MD-OCL-60-0.12-4T-1%
MD500T1.1GB MD-OCL-5-1.4-4T-1% MD500T30G(B) MD-OCL-80-0.087-4T-1%
MD500T5.5GB MD-OCL-15-0.47-4T-1% MD500T90G MD-OCL-250-0.028-4T-1%
MD500T7.5GB MD-OCL-20-0.35-4T-1% MD500T110G MD-OCL-250-0.028-4T-1%
MD500T11GB MD-OCL-30-0.23-4T-1% MD500T132G MD-OCL-330-0.021-4T-1%
MD500T15GB MD-OCL-40-0.18-4T-1% MD500T160G MD-OCL-330-0.021-4T-1%
Table 2-10 Recommended models of the AC output reactor (three phase 200–240 V)
AC Drive Model
(Inovance)
AC Drive Model
(Inovance)
MD500-2T0.4GB MD-OCL-5-1.4-4T-1% MD500-2T11G(B)(-T) MD-OCL-60-0.12-4T-1%
MD500-2T0.7GB MD-OCL-5-1.4-4T-1% MD500-2T15G(B) MD-OCL-80-0.087-4T-1%
MD500-2T1.1GB MD-OCL-7-1.0-4T-1% MD500-2T18.5G(B) MD-OCL-90-0.078-4T-1%
MD500-2T1.5GB MD-OCL-10-0.7-4T-1% MD500-2T22G(22 MD-OCL-120-0.058-4T-1%
MD500-2T5.5GB MD-OCL-30-0.23-4T-1% MD500-2T45G MD-OCL-250-0.028-4T-1%
MD500-2T7.5GB MD-OCL-40-0.18-4T-1% MD500-2T55G MD-OCL-250-0.028-4T-1%
NOTE
◆◆ Use AC output reactors of MD500T200G-L to MD500T450G-L for AC drives
MD500T200G to MD500450G.

- 37 -
2.6 Selection of Braking Components
Table 2-11 Braking component selection (three phase 380–480 V)
AC Drive Model
Applicable
Motor
(kW)
Braking Unit
125% Braking
Torque
(10% ED, Max. 10s)
Remarks Minimum
Braking
Resistance
(Ω)Model QTY
Recommended
Braking
Resistor
QTY 　
MD500T0.4GB 0.4
Built-in
80W 1450Ω 1
AC drive models
ending with letter
"B"
96
MD500T0.7GB 0.75 140W 800Ω 1 96
MD500T1.1GB 1.1 220W 500Ω 1 96
MD500T1.5GB 1.5 300W 380Ω 1 96
MD500T2.2GB 2.2 440W 260Ω 1 64
MD500T3.0GB 3 600W 190Ω 1 64
MD500T3.7GB 3.7 740W 150Ω 1 32
MD500T5.5GB 5.5 1100W 100Ω 1 32
MD500T7.5GB 7.5 1500W 75Ω 1 32
MD500T11GB 11 2200W 50Ω 1 20
MD500T15GB 15 3000W 38Ω 1 20
MD500T18.5G(B) 18.5
Built-in
4000W 32Ω 1
AC drive models
ending with letter
"B"
24
MD500T22G(B) 22 4500W 27Ω 1 24
MD500T30G(B) 30 6000W 20Ω 1 19.2
MD500T37G(B) 37 7000W 16Ω 1 14.8
MD500T45G(B) 45 9000W 13Ω 1 12.8
MD500T55G(B) 55 11000W 10.5Ω 1 9.6
MD500T75G(B) 75 15000W 7.7Ω 1 6.8
MD500T90G
90 MDBUN-60-T 2 9000W 10.0Ω 2
Input voltage ≤
440 VAC
9.3×2
90
MDBUN-60-
5T
2 9000W 12.8Ω 2
Input voltage >
440 VAC
10.5×2
MD500T110G
110 MDBUN-60-T 2 11000W 9.4Ω 2
Input voltage ≤
440 VAC
9.3×2
110
MDBUN-60-
5T
2 11000W 10.5Ω 2
Input voltage >
440 VAC
10.5×2
MD500T132G
132 MDBUN-90-T 2 13000W 6.8Ω 2
Input voltage ≤
440 VAC
6.2×2
132
MDBUN-90-
5T
2 13000W 8.8Ω 2
Input voltage >
440 VAC
7.0×2
MD500T160G
160 MDBUN-90-T 2 16000W 6.3Ω 2
Input voltage ≤
440 VAC
6.2×2
160
MDBUN-90-
5T
2 16000W 7.2Ω 2
Input voltage >
440 VAC
7.0×2

- 38 -
AC Drive Model
Applicable
Motor
(kW)
Braking Unit
125% Braking
Torque
(10% ED, Max. 10s)
Remarks Minimum
Braking
Resistance
(Ω)Model QTY
Recommended
Braking
Resistor
QTY 　
MD500T200G(-L)
200 MDBU-200-B 2 19000W 4.5Ω 2
Input voltage ≤
440 VAC
2.5×2
200 MDBU-200-C 2 19000W 5.8Ω 2
Input voltage >
440 VAC
3.0×2
MD500T220G(-L)
220 MDBU-200-B 2 21000W 4.1Ω 2
Input voltage ≤
440 VAC
2.5×2
220 MDBU-200-C 2 21000W 5.3Ω 2
Input voltage >
440 VAC
3.0×2
MD500T250G(-L)
250 MDBU-200-B 2 24000W 3.6Ω 2
Input voltage ≤
440 VAC
2.5×2
250 MDBU-200-C 2 24000W 4.6Ω 2
Input voltage >
440 VAC
3.0×2
MD500T280G(-L)
280 MDBU-200-B 2 27000W 3.2Ω 2
Input voltage ≤
440 VAC
2.5×2
280 MDBU-200-C 2 27000W 4.1Ω 2
Input voltage >
440 VAC
3.0×2
MD500T315G(-L)
315 MDBU-200-B 3 20000W 4.3Ω 3
Input voltage ≤
440 VAC
2.5×3
315 MDBU-200-C 3 20000W 5.5Ω 3
Input voltage >
440 VAC
3.0×3
MD500T355G(-L)
355 MDBU-200-B 3 23000W 3.8Ω 3
Input voltage ≤
440 VAC
2.5×3
355 MDBU-200-C 3 23000W 4.9Ω 3
Input voltage >
440 VAC
3.0×3
MD500T400G(-L)
400 MDBU-200-B 3 26000W 3.4Ω 3
Input voltage ≤
440 VAC
2.5×3
400 MDBU-200-C 3 26000W 4.3Ω 3
Input voltage >
440 VAC
3.0×3
MD500T450G(-L)
450 MDBU-200-B 3 29000W 3.0Ω 3
Input voltage ≤
440 VAC
2.5×3
450 MDBU-200-C 3 29000W 3.9Ω 3
Input voltage >
440 VAC
3.0×3

- 39 -
Table 2-12 Braking component selection (three phase 200–240 V)
AC Drive Model
Applicable
Motor (kW)
Braking Unit
125% Braking Torque
(10% ED, Max. 10s)
Remarks
Minimum
Braking
Resistance (Ω)Model QTY
Recommended
Braking
Resistor
QTY 　
MD500-2T0.4GB 0.4
Built-in
90W 300Ω 1
AC drive
models ending
with letter "B"
48
MD500-2T0.7GB 0.7 160W 170Ω 1 48
MD500-2T1.1GB 1.1 250W 110Ω 1 32
MD500-2T1.5GB 1.5 340W 80Ω 1 32
MD500-2T2.2GB 2.2 500W 55Ω 1 16
MD500-2T3.7GB 3.7 800W 33Ω 1 16
MD500-2T5.5GB 5.5 1300W 22Ω 1 10
MD500-2T7.5GB 7.5 1700W 16Ω 1 10
MD500-2T11G(B) 11
Built-in
2300W 12Ω 1
AC drive
models ending
with letter "B"
12
MD500-2T15G(B) 15 3000W 9Ω 1 9
MD500-
2T18.5G(B)
18.5 3900W 7Ω 1 7
MD500-2T22G(B) 22 4600W 6Ω 1 6
MD500-2T30G(B) 30 5500W 5Ω 1 5
MD500-2T37G(B) 37 6800W 4Ω 1 4
MD500-2T45G 45 MDBUN-60-2T 2 5000W 5.4Ω 2 - 4.9
MD500-2T55G 55 MDBUN-60-2T 2 6000W 4.4Ω 2 - 4
NOTE
◆◆ The minimum braking resistance in the preceding table supports the operating
condition with ED of 10% and the longest time for single braking of 10s.
◆◆ The default initial braking voltage for built-in braking units is 760 V and 350 V when the
input voltage is 380 to 480 VAC and 200 to 240 V, respectively.
◆◆ The default initial braking voltage is 670 V for MDBUN-60-T, MDBUN-90-T, and MDBU-
200-B when the input voltage is lower than or equal to 440 VAC, and 760 V for MDBUN-
60-5T, MDBUN-90-5T, and MDBU-200-C when the input voltage is above 440 VAC. The
resistance of the braking resistor can be adjusted with the initial braking voltage.
◆◆ The preceding table is for reference only. You can select the resistance and power of
the braking resistor as required (the resistance cannot be lower than the reference
value while the power may be higher than the reference value). Selection of the braking
resistor model is determined by the generation power of motors and is also related
to the system inertia, deceleration time and potential energy load. For systems with
high inertia, and/or short deceleration time, and/or frequent braking, select a braking
resistor with higher power and lower resistance.

- 40 -
2.7 External Operating Panels
1) External LED operating panel MD32NKE1
MD32NKE1 is an external operating panel applicable to the AC drive. It adopts the LED
display and has the same operation mode as the operating panel on the AC drive. For
details, see "4 Panel Operations". It is optional and easy for commissioning.
11
76
54
104
116
27
22.5
12
10
5
11
92.5
6.5
2X⌀3.5
Crystal head
Figure 2-2 Mounting dimensions of MD32NKE1 (unit: mm)
2) External LCD operating panel MDKE9
MDKE9 is an optional external LCD keypad. It supports copy, download, and
modification of all parameters and is easy to use in both Chinese and English. The
following figure shows its appearance and keys. (For details, see "4 Panel Operations" in
19010355 MD500 Series AC Drive Advanced User Guide.)
Screen
Left soft key
Status indicator
USB interface
Switch
RUN
Right soft key
Help
Stop
LOC/Rem switch
MDKE9
Buckle
RJ45 interface
Nameplate
Battery cover
Fixing screw hole
Fixing screw hole
Figure 2-3 Appearance of the MDKE9 external operating panel

- 41 -
72
123
MDKE9
26.4
Figure 2-4 Mounting dimensions of the MDKE9 external operating panel (unit: mm)
3) MDKE9 mounting base
Before installing the MDKE9 operating panel on the cabinet door, install the CP600-
BASE1 (optional) base first. The mounting dimensions are shown below.
4-
5
79
70
53.3
68
77.2
94.4
108.5
68
72.8
8080
79
40
φ
Figure 2-5 Sheet metal slot dimensions (unit: mm)

- 42 -
46.846.8
27.5 27.5
47 47
84.890
117.2
Figure 2-6 Mounting base dimension limits (unit: mm)

3 Installation and Wiring
- 43 -
3.1 Installation
3.1.1 Installation Environment
1) Ambient temperature: The AC drive's service life is greatly influenced by the
ambient temperature. Do not run the AC drive under a temperature exceeding the
allowed temperature range (-10℃ to +50℃ ).
2) Install the AC drive on the surface of a flame retardant object, and ensure that
sufficient space is left around the enclosure to allow for efficient heat dissipation.
The AC drive generates great heat during working. Use screws to install the AC drive
on the mounting bracket vertically.
3) Install the AC drive without strong vibration. Ensure that the mounting location is
not affected by levels of vibration that exceeds 0.6 G. Keep the AC drive away from
punch machines.
4) Ensure that the mounting location is away from direct sunlight, damp or water
drops.
5) Ensure that the mounting location is protected against corrosive, combustible or
explosive gases and vapors.
6) Ensure that the mounting location is free from oil and dust.
Dust, oil Direct sunlight Strong vibration (over 0.6 G)
Hightemperature
and humidity
Operating temperature (-10℃ to 50℃) Corrosive, combustible, or explosive gases
Combustible
material
Combustible material (do not place the AC
drive on surface of combustible materials)
Figure 3-1 Installation environment requirements
7) The AC drive must be installed in a fireproof cabinet with doors that provide
effective electrical and mechanical protection. The installation must conform to
local and regional laws and regulations, and to relevant IEC requirements.

- 44 -
3.1.2 Backplate Mounting and Through-Hole Mounting
1) Backplate mounting
Figure 3-2 Backplate mounting of MD500T0.4GB to MD500T37G(B) and MD500-2T0.4GB to
MD500-2T18.5G(B)
Hoisting
ring
Mounting hole
Figure 3-3 Backplate mounting of MD500T45G(B) to MD500T160G and MD500-2T22G(B) to
MD500-2T55G
NOTE
◆◆ In this mode, do not just secure two screws on the top of the AC drive; otherwise, the AC
drive may fall off or be damaged due to the unbalanced effect on the fixed part during
long-time running.

- 45 -
2) Through-hole mounting
Fit the bracket to the housing and secure screws
at both sides.
Through-hole
mounting
bracket
The mounting bracket is mounted.1 2
Secure the AC drive to the rear of the
supporting surface.
The AC drive is mounted.3 4
Figure 3-4 Through-hole mounting of MD500T0.4GB to MD500T37G(B) and MD500-2T0.4GB to
MD500-2T18.5G(B)
Through-hole
mounting
bracket
Secure the AC drive to the front of the supporting surface.
The mounting bracket is
mounted.
Secure the through-hole mounting brackets to the
left and right of the housing.
The AC drive is mounted.
Through-hole
mounting
bracket
1 2
3 4
Figure 3-5 Through-hole mounting of MD500T45G(B) to MD500T160G and MD500-2T22G(B) to
MD500-2T55G

- 46 -
3) Through-hole mounting brackets
Table 3-1 Through-hole mounting bracket models (three phase 380–480 V)
Through-hole
Mounting Bracket
Model
AC Drive Model
Through-hole Mounting
Bracket Model
AC Drive Model
MD500-AZJ-A1T1
MD500T0.4GB
MD500-AZJ-A1T5
MD500T18.5G(B)(-T)
MD500T0.7GB MD500T22G(B)(-T)
MD500T1.1GB
MD500-AZJ-A1T6
MD500T30G(B)
MD500T1.5GB MD500T37G(B)
MD500T2.2GB
MD500-AZJ-A1T7
MD500T45G(B)
MD500T3.0GB MD500T55G(B)
MD500-AZJ-A1T2
MD500T3.7GB
MD500-AZJ-A1T8
MD500T75G(B)
MD500T5.5GB MD500T90G
MD500-AZJ-A1T3
MD500T7.5GB MD500T110G
MD500T11GB
MD500-AZJ-A1T9
MD500T132G
MD500-AZJ-A1T4 MD500T15GB MD500T160G
Table 3-2 Through-hole mounting bracket models (three phase 200–240 V)
Through-hole
Mounting Bracket
Model
AC Drive Model
Through-hole Mounting
Bracket Model
AC Drive Model
MD500-AZJ-A1T1
MD500-2T0.4GB MD500-AZJ-A1T5 MD500-2T11G(B)
MD500-2T0.7GB
MD500-AZJ-A1T6
MD500-2T15G(B)
MD500-2T1.1GB MD500-2T18.5G(B)
MD500-2T1.5GB
MD500-AZJ-A1T7
MD500-2T22G(B)
MD500-AZJ-A1T2
MD500-2T2.2GB MD500-2T30G(B)
MD500-2T3.7GB
MD500-AZJ-A1T8
MD500-2T37G(B)
MD500-AZJ-A1T3 MD500-2T5.5GB MD500-2T45G
MD500-AZJ-A1T4 MD500-2T7.5GB MD500-2T55G
3.1.3 Mounting in the Cabinet
1) Ventilation
Only one AC drive of models MD500T200G to MD500T450G can be mounted in a cabinet
and ventilation space must be considered. Follow the following guidance for specific
model and application scenarios.

- 47 -
■■ Direct discharging cabinet (without fans on the top)
Isolationbarrier
Cabinet top air
outlet cover
Air inlet offront door
Ventilation airflow
450 kWmodel
2200
100
Figure 3-6 Direct discharging cabinet
Table 3-3 Specification of the direct discharging cabinet
AC Drive Model
Quantity
of Fans
Total Air
Volume (CFM)
Effective Area of Cabinet
Top Air Inlet (mm2
)
Effective Area of Cabinet
Top Air Outlet (mm2
)
MD500T132G 2 541 31809 50894
MD500T160G 2 620 31809 50894
MD500T200G(-L) 2 586 31809 50894
MD500T220G(-L) 2 722 31809 50894
MD500T250G(-L) 3 789 47713 76341
MD500T280G(-L) 3 882 47713 76341
MD500T315G(-L) 3 644 47713 76341
MD500T355G(-L) 3 796 47713 76341
MD500T400G(-L) 3 796 47713 76341
MD500T450G(-L) 3 796 47713 76341
Note:
◆◆ CFM = 0.0283 m3
/min
◆◆ "Effective Area" indicates the through-hole area.

- 48 -
■■ Cabinet with fans on the top
Air inlet of front door
Isolation barrier
Ventilation airflow
Fan
450 kW model
2200
100
Figure 3-7 Cabinet with fans on the top
Table 3-4 Specification of the cabinet with fans on the top
AC Drive Model
Quantity
of Fans
Total Air
Volume
(CFM)
Effective Area
of Cabinet Top
Air Inlet (mm2
)
Max. Air Volume
Required by the
Top Fan (CFM)
Effective Area of
Cabinet Top Air Outlet
(mm2
)
MD500T132G 2 541 31809 649 S = 0.942 x N x (Dout2
- DHUB2)
In the preceding
formula, N indicates
the number of top
fans, Dout indicates
the diameter of
the top fan, and
DHUB indicates the
diameter of the top
fan center HUB.
MD500T160G 2 620 31809 744
MD500T200G(-L) 2 586 31809 703
MD500T220G(-L) 2 722 31809 866
MD500T250G(-L) 3 789 47713 947
MD500T280G(-L) 3 882 47713 1058
MD500T315G(-L) 3 644 47713 773
MD500T355G(-L) 3 796 47713 955
MD500T400G(-L) 3 796 47713 955
MD500T450G(-L) 3 796 47713 955
Note:
◆◆ CFM = 0.0283 m3
/min
◆◆ "Effective Area" indicates the through-hole area.

- 49 -
3.2 Wiring
3.2.1 Standard Wiring Diagram
As shown in the following figure, the wiring part marked by the double-headed arrow
in 0.4 to 75 kW/0.4 to 37 kW models is different from that in 90 to 450 kW/45 to 55 kW
models.
R
S
T
U
V
W
+24V
OP
DI1
DI2
DI3
DI4
DI5
COM
+10V
AI2
GND
485-
485+
GND
AI1
T/C
T/B
T/A
FM
COM
DO1
CME
AO1
GND
L1
L2
L3
M
AM
- + BR
- +
Jumper J7
Jumper J9
Forward run/stop
(F4-00 = 1)
(F4-01 = 4)
(F4-02 = 9)
(F4-03 = 12)
(F4-04 = 13)
1–5 kΩ
0–10 V
0–20 mA
Modbus-RTU
Grounding terminal
Grounding terminal
MD38TX1
(optional)
J13
Function extensioncard
0 V
J11 RJ45
Interface of external operating panel
Three phase 380 V 0.4 to 75 kW models
Three phase 220 V 0.4 to 37 kW models
Three phase 380 V 90 to 450 kW models
Three phase 220 V 45 to 55 kW models
AO1: 0–10 V/0–20 mA
Pulse sequence output: 0–100 kHz
Open-collector 1: 0–24 VDC/0–50 mA
Relay output:
250 VAC, 10 mA to 3 A
30 VDC, 10 mA to 1 A
FuseContactorBreaker
Forward jog
Fault reset
Multi-reference 1
Multi-reference 2
Max. pulse 100 kHz
Default value:
Operating frequency 0–10 V, F5-07 = 0
Default value:
Frequency setting 0–50 kHz, F5-00 = 0, F5-06 = 0
Default value:
When the ACdrive is running, F5-04 = 1
Default value:
AC drive fault, F5-02 = 2
J4
PG extension
interface
A+
A-
B+
+5V
COM
Dividing frequency output
PG
PE
MD38PGMD
(optional)
B-
Z+
Z-
OA+
OA-
OB+
OB-
OZ+
OZ-
OA
OB
OZ
GND
Jumper J10
I V
250Ω 500Ω
Braking unit
I V
MD500
Max. rate 115200 bps
Braking resistor
Braking resistor
Note: ——Shield; ——Twisted pair
Figure 3-8 Typical wiring

- 50 -
3.2.2 Main Circuit Terminals
R S T U V WBR + -
Figure 3-9 Terminal arrangement in MD500T0.4GB to MD500T15GB and MD500-2T0.4GB to
MD500-2T7.5GB
R S T
POWER
U V W
MOTOR
BR (+) (-)
Figure 3-10 Terminal arrangement in MD500T18.5G(B) to MD500T160G and MD500T11G(B) to
MD500T55G
U
V
W
R
S
T
+-
(Front view) (Side view)
Figure 3-11 Terminal arrangement in MD500T200G(-L) to MD500T450G(-L)
Table 3-5 Description of main circuit terminals
Terminal Name Description
R, S, T
Three-phase power
supply input terminals
Connected to AC input three-phase power supply.
(+), (-)
DC bus positive and
negative terminals
Common DC bus input, connected to the external
braking unit for AC drives of 90 kW and above
(+), BR
Braking resistor
connection terminals
Connected to the external braking resistor for AC drive of
75 kW and below

- 51 -
Terminal Name Description
U, V, W AC drive output terminals Connected to a three-phase motor
Ground (PE) terminal Grounding connection
3.2.3 Control Circuit Terminals
+10V AI1 AI2 DI1 DI2 DI3 DI4 DI5 COM
GND GND AO1 FM DO1 CME COM OP +24V
T/A T/B T/C
Analog input and
power supply
Logic input Pulse input Power supply
Relay output
Analog output and
analog terminal
Pulse output and open-
collector output
Logic public terminal
and power supply
AO1 output selection: voltage output by defaultJ7
J9
J10
I V
AI2 input impedance selection: 500 Ω by default, 250 Ω
selectable
AI2 input selection: voltage input by default
Figure 3-12 Control circuit terminal arrangement

- 52 -
Table 3-6 Description of control circuit terminals
Type
Terminal
Mark
Terminal
Name
Description
Power
supply
+10 V-GND
+10 V power
supply
Provides +10 V power supply to an external unit. Its
maximum output current is 10 mA.
Generally used to supply an external potentiometer of 1 to
5 kΩ
+24V-COM
+24 V power
supply
Provides +24 V power supply to an external unit. Generally
used for power supply for DI/DO terminals and external
sensors.
Maximum output current: 200 mA [1]
OP
Input
terminal
for external
power supply
Connected to +24 V by default.
When DI1 to DI5 need to be driven by external signals, OP
must be disconnected from + 24 V and connected to an
external power supply.
Analog
input
AI1-GND
Analog input
1
Voltage range of inputs: 0 to 10 VDC
Input impedance: 22 kΩ
AI2-GND
Analog input
2
Either a voltage or current input, determined by jumper J9
Input voltage range: 0 to 10 VDC
Input current range: 0 to 20 mA
Input impedance: 22 kΩ (voltage input), 500 Ω or 250 Ω
(current input) decided byJ10 [2]
Digital
input
DI1- OP Digital input 1
Optically-coupled isolation compatible with dual-polarity
inputs
Input impedance: 1.39 kΩ
Voltage range for inputs: 9 to 30 V
DI5- OP
High-speed
pulse input
In addition to having the same features as DI1 to DI4, DI5
can also be used for high-speed pulse inputs.
Maximum input frequency: 100 kHz
Input impedance: 1.03 kΩ
Analog
output
AO1-GND
Analog
output 1
Either a voltage or current output, determined by jumper
J7.
Output voltage range: 0 to 10 V
Output current range: 0 to 20 mA
Digital
output
DO1-CME
Digital output
1
Optically-coupled isolation, dual-polarity open-collector
output
Output voltage range: 0 to 24 V
Output current range: 0 to 50 mA
Note that CME and COM are internally insulated, but are
shorted externally by a jumper. In this case, DO1 is driven
by +24 V by default. Remove the jumper link if you need to
apply external power to DO1.
FM- COM
High-speed
pulse output
Controlled by F5-00 (FM terminal output selection).
Maximum output frequency: 100 kHz
When used as an open-collector output, the specification
is the same as for DO1.

- 53 -
Type
Terminal
Mark
Terminal
Name
Description
Relay
output
T/A-T/B
Normally-
closed (NC)
terminal
Contact driving capacity:
250 VAC, 3 A, Cos Φ = 0.4
30 VDC, 1 A
T/A-T/C
Normally-
open (NO)
terminal
Auxiliary
interfaces
J13
Extension
card interface
Interface for the 28-core terminal and optional cards (I/O
extension card, PLC card, and various bus cards)
J4
PG card
interface
The open-collector, differential, and resolver interfaces are
selectable options.
J11
External
operating
panel
interface
Connected to an external operating panel.
Jumper [3]
J7
AO1 output
selection
Either a voltage or a current output. Voltage output by
default
J9
AI2 input
selection
Either a voltage or a current input. Voltage input by default
J10
AI2 input
impedance
selection
Either 500 Ω or 250 Ω input. 500 Ω input by default
[1] When the ambient environment is above 23℃ , the output current must be de-rated for 1.8 mA
per 1℃ rise. The maximum output current is 170 mA at 40℃ . When OP is shorted to 24 V, the
current of the DI must also be considered.
[2] Select 500 Ω or 250 Ω input impedance according to the with-load capacity of signal source. For
example, if 500 Ω is selected, the maximum output voltage of signal source cannot be smaller
than 10 V so that AI2 can measure 20 mA current.
[3] For positions of jumpers J7, J9 and J10, see Figure 3-12.

4 Panel Operations
- 54 -
4 Panel Operations
4.1 Introduction
The LED operating panel allows you to set and modify parameters, monitor system
status, and start or stop the AC drive. For details, see "4 Panel Operation" in 19010355
MD500 Series AC Drive Advanced User Guide. An external LED (MD32NKE1) or LCD
(MDKE9) operating panel is also available as an option. For details, see "2.7 External
Operating Panels".
MF. KRUN
STOP
RES
QUICK
PRG ENTER
RUN LOCAL / REMOT FWD / REV TUNE / TC
Command source indicator
Running status indicator
LED display for parameters
Program key
Menu mode selection key
Run key
Running direction indicator
Auto-tuning/Torque
control/Fault indicator
Unit indicator
Increment key
Shift key
Stop/Reset key
Confirm key
Decrement key
Multi-function selection key
RPM %
A VHz
Figure 4-1 Details of the operating panel
4.2 Keys on the Operating Panel
Table 4-1 Function of keys on the operating panel
Key Name Function
PRG Programming Enter or exit Level I menu.
ENTER Enter
Enter each level of menu interface and confirm displayed parameter
setting.
Increment Increase the displayed value when editing a parameter value.
Decrement Decrease the displayed value when editing a parameter value.
Shift
Select the displayed parameter in the STOP or RUNNING status.
Select the digit to be modified when modifying a parameter value.
RUN RUN Start the AC drive when using the operating panel control mode.

4 Panel Operations
- 55 -
Key Name Function
STOP
RES
Stop/Reset
Stop the AC drive when the AC drive is in the RUNNING status.
Perform a reset operation when the AC drive is in the FAULT status.
MF.K Multifunction
Perform a function switchover as defined by the setting of F7-01 (MF.K
key function selection).
QUICK
Menu mode
selection
Switch over between menu modes as defined by the setting of FP-03
(Selection of individualized parameter display).
4.3 Indicators on the Operating Panel
indicates that the light turns on, indicates that the light turns off, and
indicates that the light flashes.
Table 4-2 Indicators on the operating panel
State Indication
RUN
Running status indicators
RUN
OFF indicates the STOP status.
RUN
ON indicates the RUNNING status.
LOCAL/REMOT
Running command
indicators
LOCAL/ REMOT
OFF indicates under operating panel
control.
LOCAL/ REMOT
ON indicates under terminal control.
LOCAL/ REMOT
FLASHING indicates under serial
communication control.
FWD/REV
Forward and reverse
rotation indicators
FWD/ REV
OFF indicates forward motor rotation.
FWD/ REV
ON indicates reverse motor rotation.
TUNE/TC
Auto-tuning, torque control
and fault indicators
TUNE/ TC
OFF indicates that the AC drive is
normal.
TUNE/ TC
ON indicates the torque control mode.
TUNE/TC
FLASHING SLOWLY (once a second)
indicates auto-tuning status.
TUNE/TC
FLASHING QUICKLY (four times a
second) indicates a fault condition.
RPM %
A VHz
Hz for frequency
RPM %
A VHz
A for current
RPM %
A VHz
V for voltage
RPM %
A VHz
RPM for motor speed
RPM %
A VHz
Percentage

5 Basic Operations and Trial Run
- 56 -
5.1 Quick Commissioning
Start
Connect peripherals correctly and firmly.
Power on the AC drive. Check the display on the operating panel is correct. Set
FP-01 to 1 (restore to the default value).
Set group F1, including F1-27 to F1-30 if the motor is equipped with an
encoder.
After completing auto-tuning and confirming that the motor can be safely
started up, press "RUN" to run the motor. Check whether the running current
and running direction are normal in both no-load and with-load running.
Stop the motor. Based on control requirements, set DI, DO, serial
communication, fault output, and other logical control functions.
Run the motor without load, and check that the control signals are normal and
other logical functions are normal.
Stop the AC drive, finishing commissioning.
Record the commissioning process.
Run the motor with load, and check that the control signals are normal, logical
functions are normal, and peripherals work properly.
(Step 1: See "2 System Connection". )
(Step 2: See "6.4 Parameter Initialization". )
(Step 3: See "6.4 Motor Auto-tuning" in 19010355
MD500 Series AC Drive Advanced User Guide.)
(Step 4: See "6.4 Motor Auto-tuning" in 19010355
MD500 Series AC Drive Advanced User Guide. )
(Step 5: See "5.12 Viewing Running Status" in
19010355 MD500 Series AC Drive Advanced User
Guide. )
(Step 6: See "6.9 Input and Output Terminals" and
"6.10 Communication" in 19010355 MD500 Series AC
Drive Advanced User Guide.)
(Step 7: See "6.6 Auto-tuning". )
(Step 8: See "6.6 Auto-tuning". )
Set F1-37 to do auto-tuning of the motor according to whether the motor can
be disconnected from the load.
Figure 5-1 Quick commissioning
5.2 Precautions Before Power-on
Be sure to check the following items before powering on the AC drive.
Item Description
Voltage
The voltage is AC 380 to 480 V or 220 to 240 V and 50/60 Hz.
The input terminals R, S, and T are correctly connected.
The AC drive is connected to the motor properly.
Connection of AC drive output
terminals and motor terminals
The AC drive output terminals U, V, and W are firmly connected to
the motor terminals.
Connection of terminals in the
control circuit
Terminals of the control circuit are firmly connected to other
control devices.
Status of control terminals
All terminals of the control circuit are OFF (the AC drive is not
running).

- 57 -
Item Description
Load The motor is idle and not connected to the mechanical system.
5.3 Status Display After Power-on
The following table lists the display on the operating panel after the AC drive is powered
on.
State Display Description
Normal Default value 50.00 Hz is displayed.
Fault The AC drive stops and displays an error code.
5.4 Parameter Initialization
You can restore the AC drive to factory parameters. After initialization, FP-01 is
automatically reset to 0.
FP-01
Parameter initialization Default 0
Setting
Range
0 No operation　
1
Restore factory parameters except motor parameters
　
2 Clear records　
4 Back up current user parameters
501 Restore user backup parameters
1: Restore factory parameters except motor parameters
When FP-01 is set to 1, most of the parameters are restored to the factory default
settings. However, motor parameters, F0-22 (Frequency reference resolution), error
records, F7-09 (Accumulative running time), F7-13 (Accumulative power-on time), F7-
14 (Accumulative power consumption), and F7-07 (Heatsink temperature of AC drive)
cannot be restored.
2: Clear records
Error records, F7-09 (Accumulative running time), F7-13 (Accumulative power-on time),
and F7-14 (Accumulative power consumption) are cleared.
4: Back up current user parameters
Parameters set by the current user are backed up. Values of all the current function
parameters are backed up for restoration after an error caused by parameter adjustment
occurs.
501: Restore user backup parameters
Restore parameters backed up by setting FP-01 to 4.

- 58 -
5.5 Motor Control Modes
Parameter Description Scenario
F0-01: Motor
control
mode
F0-01 = 0: SVC
It indicates the SVC mode. It is applicable for common high-
performance control scenarios in which one AC drive can
drive only one motor, for example, machine tool, centrifuge,
drawing machine, and injection molding machine.
F0-01 = 1: FVC
It indicates the FVC mode. The motor must be equipped
with an encoder and the AC drive must be equipped with a
PG card in the same type of the encoder. It is applicable to
scenarios requiring high precision speed or torque control.
One AC drive can drive only one motor, for example, high-
speed papermaking machine, crane, and elevator.
F0-01 = 2: V/F
control
It is applicable to scenarios having no requirement on load
(fans and pumps) or using one drive to drive multiple motors.
5.6 Auto-tuning
You can obtain parameters of a controlled motor through motor auto-tuning. Motor
auto-tuning methods include dynamic auto-tuning, static auto-tuning 1, and static
auto-tuning 2. You can enter the motor parameters manually.
Auto-tuning Method Application Result
Dynamic no-load
auto-tuning
F1-37 = 2
It is applied to applications where motors can be disconnected
from the load.
Best
Dynamic auto-
tuning with load
F1-37 = 2
It is applied to applications where motors cannot be disconnected
from the load. The load friction force is small and the motor is
appropriately idle when running at a constant speed. The effect is
better with a smaller friction force.
Better
Static auto-tuning 1
F1-37 = 1
from the load and dynamic auto-tuning is not allowed.
Good
Static auto-tuning 2
F1-37 = 3
from the load and dynamic auto-tuning is not allowed. This mode
is recommended for static auto-tuning. It lengthens the auto-tuning
time compared to static auto-tuning 1.
Better
Manual parameter
input
from the load. Copy parameters of motors of the same model which
have been auto-tuned to F1-00 (Motor type selection) to F1-10 (No-
load current).
Better
Auto-tuning methods are described below.
Motor 1 is used to describe motor auto-tuning methods. If you need to perform auto-
tuning on motor 2, set F0-24 (Motor parameter group selection) to 1 (Motor parameter
group 2).

- 59 -
Step 1: If the motor can be disconnected from the load, cut off the power, and
disconnect the motor from the load to have the motor run without load.
Step 2: Power on the AC drive. Set F0-02 (Running command selection) to 0 (Serial
communication) to select the operating panel as the running command.
Step 3: Input motor nameplate parameters (F1-00 to F1-05) correctly. Set the following
parameters according to the motor:
Motor Parameter
Motor 1 F1-00: Motor type selection F1-01: Rated motor power
F1-02: Rated motor voltage F1-03: Rated motor current
F1-04: Rated motor frequency F1-05: Rated motor speed
Motor 2 A2-00 (Motor type selection) to A2-05 (Rated motor speed) have the same definition.
If there is an encoder, set F1-27 (Encoder pulses per revolution), F1-28 (Encoder type),
and F1-30 (A/B phase sequence of ABZ incremental encoder).
Step 4: For an asynchronous motor, set F1-37 (Auto-tuning selection) (A2-37 in case of
Motor 2) to 2 (Asynchronous motor dynamic auto-tuning) and press ENTER. "TUNE" is
displayed, as shown in the following figure:
Press RUN on the operating panel. The AC drive drives the motor to accelerate/
decelerate and run in forward/reverse direction. The RUN indicator becomes ON and
auto-tuning lasts for about 2 minutes. After the preceding display disappears and the
operating panel returns to normal parameter display state, auto-tuning is completed.
After auto-tuning, the following motor parameters are calculated:
Motor Parameter
Motor 1 F1-06: Stator resistance F1-07: Rotor resistance
F1-08: Leakage inductive reactance F1-09: Mutual inductive reactance
F1-10: No-load current
Motor 2 A2-06 to A2-10 have the same definition.
If the motor cannot be disconnected from the load, set F1-37 (A2-37 in case of Motor 2)
to 3 (Asynchronous motor complete static auto-tuning) and press RUN on the operating
panel. Auto-tuning starts.

6 Troubleshooting and Solutions
- 60 -
6.1 Fault Codes and Solutions
Troubleshoot the faults occurred during operating the AC drive as follows.
Fault
Code
Fault Name Possible Cause Solution
Err02
Overcurrent
during
acceleration
A grounding fault or short
circuit exists in the output
circuit.
Check whether short-circuit occurs on the
motor, motor cable, or contactor.
The control mode is SVC or
FVC but motor auto-tuning is
not performed.
Set motor parameters according to the motor
nameplate and perform motor auto-tuning.
The acceleration time is too
short.
Increase the acceleration time.
The overcurrent stall
prevention parameters are set
improperly.
Ensure that current limit is enabled (F3-19 =
1).
The setting of F3-18 (Current limit level) is
too large. Adjust it between 120% and 150%.
The setting of F3-20 (Current limit gain) is too
small. Adjust it between 20 and 40.
Customized torque boost or V/
F curve is not appropriate.
Adjust the customized torque boost or V/F
curve.
The motor is started while
spinning.
Enable the catching a spinning motor
function or start the motor after it stops
spinning.
The AC drive suffers external
interference.
View historical fault records. If the current
value is far from the overcurrent level,
find the interference source. If an external
interference does not exist, the drive board
or Hall element may be faulty.

- 61 -
Fault
Code
Err03
Overcurrent
during
deceleration
circuit.
not performed.
Set the motor parameters according to the
motor nameplate and perform motor auto-
tuning.
The deceleration time is too
short.
Increase the deceleration time.
improperly.
1).
The braking unit and braking
resistor are not installed.
Install the braking unit and braking resistor.
interference.
Err04
Overcurrent at
constant speed
circuit.
not performed.
Set motor parameters according to the motor
nameplate and perform motor auto-tuning.
improperly.
1).
The AC drive power class is
small.
If the output current exceeds the rated motor
current or rated output current of the AC
drive during stable running, use an AC drive
of larger power class.
interference.

- 62 -
Fault
Code
Err05
Overvoltage
during
acceleration
The input voltage is too high. Adjust the input voltage to the normal range.
An external force drives the
motor during acceleration.
Cancel the external force or install a braking
resistor.
The overvoltage stall
improperly.
Ensure that the voltage limit function is
enabled (F3-23 = 1).
The setting of F3-22 (Voltage limit) is too
large. Adjust it between 700 V and 770 V.
The setting of F3-24 (Frequency gain for
voltage limit) is too small. Adjust it between
30 and 50.
The acceleration time is too
short.
Increase the acceleration time.
Err06
Overvoltage
during
deceleration
improperly.
30 and 50.
motor during deceleration.
resistor.
The deceleration time is too
short.
Increase the deceleration time.
Err07
Overvoltage at
constant speed
improperly.
30 and 50.
The setting of F3-26 (Frequency rise
threshold during voltage limit) is too small.
Adjust it between 5 Hz and 20 Hz.
motor during acceleration.
resistor.
Err08
Pre-charge
power fault
The bus voltage fluctuates
around the undervoltage
threshold continuously.
Contact the agent or Inovance.

- 63 -
Fault
Code
Err09 Undervoltage
An instantaneous power failure
occurs.
Enable the power dip ride through function
(F9-59 ≠ 0).
The AC drive's input voltage
is not within the permissible
range.
Adjust the voltage to the normal range.
The bus voltage is abnormal. Contact the agent or Inovance.
The rectifier bridge, pre-charge
resistor, drive board, or control
board are abnormal.
Err10 AC drive overload
The load is too heavy or
locked-rotor occurs on the
motor.
Reduce the load or check motor and
mechanical conditions.
The AC drive power class is
small.
Replace an AC drive of larger power class.
Err11 Motor overload
F9-01 (Motor overload
protection gain) is set
improperly.
Set F9-01 (Motor overload protection gain)
correctly.
The load is too heavy or
locked-rotor occurs on the
motor.
Reduce the load or check motor and
mechanical conditions.
Err12 Input phase loss
Input phase loss occurs. Eliminate faults in external circuits.
The drive board, lightning
protection board, main control
board, or rectifier bridge is
abnormal.
Err13
Output phase
loss
The motor is faulty.
Check and ensure that the motor is free of
open circuit.
The cable connecting the
AC drive and the motor is
abnormal.
Eliminate external faults.
The AC drive's three-phase
outputs are unbalanced when
the motor is running.
Check whether the motor three-phase
winding is normal.
The drive board or the IGBT is
abnormal.
Err14 IGBT overheat
The ambient temperature is
too high.
Lower the ambient temperature.
The ventilation is clogged. Clean the ventilation.
The fan is damaged. Replace the cooling fan.
The thermistor of IGBT is
damaged.
Replace the thermistor.
The IGBT is damaged. Replace the IGBT.

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